JPH09255529A - Oil-in-water type emulsion composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having a substantial feeling in use without utilizing a surfactant by using both a specific polymer and a prescribed oily component as an emulsifying means and setting the particle diameter of the oily component of an inner phase at a fixed value or lower than it. SOLUTION: Both (A) an alkyl-modified carboxyvinyl polymer (especially preferably an acrylic acid-methacrylic acid alkyl copolymer) and (B) an oily component in a solid state at a room temperature (especially preferably a higher alcohol, solid oils and fats, a wax, a solid hydrocarbon, a higher fatty acid and its salt) are used and the number-average particle diameter of the oily component of an inner phase formed by emulsification is made <=1μm. The amount of the component A blended is preferably >=0.01wt.% and <=10wt.%, especially <=0.05wt.% and <=5wt.% based on the total of the composition. The amount of the component B blended is preferably >=0.05wt.% and <=20wt.%, especially >=1wt.% and <=10wt.%. The component composition is preferably emulsified by using a nonaqueous emulsification method, a D-phase emulsification method or a phase inversion temperature emulsification method.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention belongs to the technical field of an emulsified composition which has a good feeling when used on the skin, is excellent in stability at low temperatures, and has a high degree of safety.

[0002]

2. Description of the Related Art Emulsion compositions for cosmetics such as creams and emulsions must be emulsified during the production process to form an emulsion which is a dispersion system of water and oil. As the emulsifier to be added to the emulsified composition for the purpose of emulsification, various surfactants are currently generally used. As a selection criterion when using this surfactant as an emulsifier, it is needless to say that it is desirable to have an excellent emulsifying power, but it is necessary to use a surfactant having a safety that can sufficiently ensure the safety of the user. It is essential to use. Therefore, a surfactant having excellent emulsifying power and safety is currently blended as an emulsifier in the emulsion composition.

In order to pursue even higher levels of safety, an attempt is made to emulsify without compounding a surfactant. For example, instead of compounding a surfactant, the safety is high and the emulsifying power is high. Attempts have also been made at present to emulsify by adding a specific alkyl-modified carboxyvinyl polymer to the emulsion composition. However, it cannot be denied that the emulsified composition obtained in this manner lacks the "body-in-use" generally desired as an attribute of the emulsified composition. In order to solve this problem, a solid oily component at room temperature in the process of producing an emulsion composition,
Although attempts have been made to blend it, this solid oily component has a strong tendency to undergo crystallization when left at a low temperature for a long period of time and to precipitate in the emulsion composition. Therefore, it cannot be denied that there is an inconvenient aspect as an attempt for an emulsified composition that may be stored at a low temperature in a cold region.

[0004]

Therefore, the problem to be solved by the present invention is to provide a "rich body" in an emulsified composition which does not need to use a surfactant as an emulsifying means for the purpose of ensuring a high degree of safety. The purpose of the present invention is to provide an emulsified composition in which the "usability" is sufficiently retained and which is excellent in stability at low temperatures.

[0005]

Means for Solving the Problems The present inventor has made intensive studies to solve the above problems. As a result, in the oil-in-water emulsion composition, similarly to the above-mentioned conventional art, a specific alkyl-modified carboxyvinyl polymer was blended as an emulsifying means, and a solid state at room temperature was added for the purpose of imparting a "rich feeling of use". The present invention has been completed by finding that the above problems can be solved by setting the number average particle diameter of the oily component of the internal phase to 1 μm or less even when the above oily component is blended.

That is, the present inventor has formed the following components (A) and (B): (A) an alkyl-modified carboxyvinyl polymer (B) an oily component which is solid at room temperature, and is formed as a result of emulsification. An oil-in-water emulsion composition in which the number average particle diameter of the oily component of the inner phase is 1 μm or less is provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The alkyl-modified carboxyvinyl polymer as the component (A) is an alkyl-modified carboxyvinyl polymer which is usually used as a thickener [eg CARBOPO.
L941 (BFGoodrich), Hibiswako 105
(Manufactured by Wako Pure Chemical Industries, Ltd.) and the like], it is necessary to have an emulsifying power capable of stably emulsifying an oil component by its blending.

Examples of the alkyl-modified carboxyvinyl polymer having such properties include, for example, an alkyl acrylate / methacrylic acid copolymer.

Further, as the alkyl-modified carboxyvinyl polymer having such properties, those synthesized by a generally known method are appropriately used in the oil-in-water emulsion composition of the present invention (hereinafter, also referred to as the emulsion composition of the present invention). Although it is necessary to use the component (A), it is also possible to use a commercially available product. As such a commercially available product, PEMULEN TR-1 or PEMULENT T is typically used.
R-2 (both manufactured by BFGoodrich) can be mentioned.

The above-mentioned alkyl-modified carboxyvinyl polymers can be blended alone in the emulsion composition of the present invention, or can be blended in a suitable combination of two or more species.

The amount of the above alkyl-modified carboxyvinyl polymer compounded in the emulsion composition of the present invention should be individually and specifically determined depending on various conditions such as the dosage form of the emulsion composition of the present invention. Although it is not particularly limited as long as the intended effect of the present invention can be exhibited, it is preferably 0.01% by weight or more and 10% by weight or less of the total composition. That is, 0.01% by weight of the total composition
If the amount is less than 10% by weight, it is difficult to achieve an emulsifying action corresponding to an increase in the amount and improvement of the emulsion stability at low temperature. Absent.

In view of the fact that it is desirable to give the emulsified composition of the present invention as "rich feeling as possible" to the extent possible, it is in the range of 0.05% by weight or more and 5% by weight or less of the entire composition. It is particularly preferable to blend in.

By blending the above alkyl-modified carboxyvinyl polymer, the emulsion composition of the present invention containing substantially no surfactant is provided. That is, a surfactant that is generally used as a conventional emulsifying means, that is, a surfactant that is usually classified as an anionic surfactant, a cationic surfactant, an amphoteric surfactant or a nonionic surfactant is blended. Without this, the emulsion composition of the present invention in which an emulsion is formed is provided.

The component (B) "oil component which is solid at room temperature" means an oil component which can be incorporated into a cosmetic composition which is solid at room temperature, that is, about 30 ° C. For example, higher alcohols, solid oils and fats, waxes, solid hydrocarbons, higher fatty acids or higher fatty acid salts can be mentioned. In view of the fact that, among these oily components, the "rich feeling in use" should be improved as much as possible, higher alcohols, higher fatty acids or higher fatty acid salts (particularly inorganic salts) are added to the emulsion composition of the present invention. It can be mentioned as a preferable oily component to be blended.

Examples of higher alcohols include linear higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol and cetostearyl alcohol; glyceryl monostearyl ether (batyl alcohol) or glyceryl monocetyl ether (chimyl alcohol). ) And other branched-chain higher alcohols.

Examples of higher fatty acids include capric acid,
Lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, cerotic acid, 2-palmitoleic acid, erucic acid and the like can be mentioned. The higher fatty acid salts include inorganic base salts such as sodium salts, potassium salts and ammonium salts of the above higher fatty acids; alkanolamine salts such as triethanolamine salts and tripropanolamine salts; aluminum salts, magnesium salts, zinc salts, Examples thereof include metal soaps such as calcium salts; salts such as basic amino acid salts such as arginine salts and lysine salts.

In view of the fact that it is desirable to give the emulsified composition of the present invention as much as possible a "soft feeling",
Lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid or behenic acid or salts thereof are preferably incorporated in the emulsion composition of the present invention.

Note that some of these fatty acid salts exemplified are not originally oily components, but when these components are also stored for a long time in an ordinary emulsion, a part of the fatty acid However, as described below, even in such a case, the intended effect can be obtained in the emulsion composition of the present invention.

Examples of the solid oils and fats include cocoa butter, coconut oil, palm oil, palm kernel oil, hydrogenated oil, hydrogenated castor oil, oak, and shea butter. Examples of the waxes include beeswax, carnauba wax, lanolin, reduced lanolin, hard lanolin, jojoba wax, shellac wax and the like.

Examples of solid hydrocarbons include petrolatum,
Examples thereof include microcrystalline wax.

These "oil components that are solid at room temperature"
The compounding amount in the emulsified composition of the present invention may be 0.5% by weight or more and 20% by weight or less of the entire composition. If the amount of the composition is less than 0.5% by weight, the effect of improving the "feeling of bodyiness" is not exhibited, and if the amount is more than 20% by weight, the amount of "Koku no There is no longer any improvement in "a certain feeling of use". In addition, it is particularly preferable that the composition is blended in the range of 1% by weight or more and 10% by weight or less of the entire composition from the viewpoint that a feeling of use is obtained without being sticky and sticky.

In the emulsified composition of the present invention, the number average particle diameter of the oily component of the internal phase (hereinafter, also referred to as emulsified particles) formed as a result of emulsification is 1 μm (diameter) or less. As described above, the means for adjusting the number average particle diameter of the oil component of the "inner phase", which is the liquid portion in the form of fine particles dispersed in the emulsion composition of the present invention, to 1 μm or less is not particularly limited. Any means can be used as long as it is possible to make fine particles.

Usually, when an oily component and an aqueous component are emulsified to form an emulsion, for example, a non-aqueous emulsification method (Takashi Suzuki: Japanese Patent Publication No. 57-29213) and a D-phase emulsification method (H. Sagitani: J. Am. Oil Chem. Soc., 58,738 (1981))
, Phase inversion temperature emulsification method (K. Shinoda: J. Colloid Interface Sc
i., 24, 4 (1969) et al.), and the like, by following the interfacial scientific emulsification method such as various homogenizers such as homomixers, homodispers, homogenizers, colloid mills,
Desirable 1 μm even with a pebble mill, ultrasonic emulsifier, etc.
The following emulsified particles can be prepared. However, in the case of preparing the emulsified particles by such means, there are some aspects that are not necessarily advantageous in that there are restrictions on formulation when blending a humectant or selecting a surfactant.

Unlike these conventionally widely used emulsifying machines, the "high pressure emulsifying machine" which emulsifies by ejecting a liquid from a nozzle under a high pressure of 100 to 1000 bar is subject to the above-mentioned restrictions on formulation. It is advantageous as a means for preparing the emulsion composition of the present invention in that it does not exist. Specific examples include commercially available products such as Microfludizer, Nanomizer, and Mantongoulin (all are trade names). Among these commercially available high-pressure emulsifiers, Nanomizer is an apparatus for colliding an oily component and an aqueous component under high pressure from a nozzle having a connecting groove to obtain fine emulsified particles, and the usually prepared emulsified particle diameter is 1 μm. Since it is extremely fine as follows, it is a particularly preferable emulsifying machine as an emulsifying means when preparing the emulsion composition of the present invention.

The emulsified composition of the present invention containing the above-mentioned essential components and having the emulsified particles having a particle diameter within the above range has a poor feeling in use when applied to the skin and is stable at low temperatures. It has excellent properties with excellent and high safety.

The emulsion composition of the present invention is an oil-in-water type (O / W
(Type) A cosmetic formulation based on the form of an emulsion can be adopted. Specifically, a dosage form or form such as emulsion, cream, cleansing cream, emulsified foundation, etc. can be adopted.

In the emulsion composition of the present invention, in addition to the above-mentioned essential components, various drugs and / or base components or the like usually used in cosmetic compositions are imparted, depending on the drug effect and the above-mentioned dosage form. Can be added as long as the desired effect of the present invention is not impaired by the combination. Examples of these drugs and base components are shown below, but it goes without saying that the drugs and base components that can be incorporated into the emulsion composition of the present invention are not limited thereto.

Examples of moisturizers include polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, diglycerin, xylitol, maltitol, maltose, D-mannitol, sorbit and the like. It can be incorporated in the emulsion composition of the present invention.

Examples of the UV absorbers include benzoic acid UV absorbers such as para-aminobenzoic acid; anthranilate UV absorbers such as methyl anthranilate; salicylate UV absorbers such as octyl salicylate and phenyl salicylate; para. Cinnamic acid-based UV absorbers such as isopropyl methoxycinnamate, octyl paramethoxycinnamate, and glyceryl mono-2-ethylhexanoate diparamethoxycinnamate; 2,4-dihydroxybenzophenone,
Benzophenone-based UV absorbers such as 2-hydroxy-4-methoxybenzophenone and 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid; urocanic acid
2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 4-tert-butyl-4'-methoxybenzoylmethane and the like can be added to the emulsion composition of the present invention.

Further, as the antibacterial agent, benzoic acid, salicylic acid, carboxylic acid, sorbic acid, paraoxybenzoic acid ester, parachlorometacresol, chlorhexidine chloride, trichlorocarbanilide, phenoxyethanol and the like are mixed in the emulsion composition of the present invention. be able to.

Further, as a general medicine, vitamin A oil,
Retinol, retinol palmitate, inosit, pyridoxine hydrochloride, benzyl nicotinate, nicotinamide, nicotinic acid DL-α-tocopherol, magnesium ascorbate phosphate, vitamin D2 (ergocasiferol), dl-α-tocopherol, dl-acetate Vitamins such as α-tocopherol, pantothenic acid and biotin; Hormones such as estradiol and ethinyl estradiol; Amino acids such as arginine, aspartic acid, cystine, cysteine, methionine, serine, leucine and tryptophan; Anti-inflammatory agents such as allantoin and azulene ;
Whitening agents such as arbutin; astringents such as zinc chloride and tannic acid; cooling agents such as L-menthol and camphor; sulfur, lysozyme chloride, pyridoxine hydrochloride, γ-oryzanol and the like may be added to the emulsion composition of the present invention. it can.

Further, various extracts include Dokudami extract, Oataku extract, Merrilot extract, Odorikosou extract, licorice extract, peony extract, Saponsou extract, loofah extract, Quina extract, Yukinoshita extract, Clara extract, Kouhone extract, and fennel extract. , Primrose extract, rose extract, dioxin extract, lemon extract, shikon extract, aloe extract, ginger root extract, eucalyptus extract, horsetail extract, sage extract, thyme extract, tea extract, seaweed extract, cucumber extract, clove extract, raspberry extract, melissa extract, The present invention includes carrot extract, horse chestnut extract, peach extract, peach leaf extract, mulberry extract, cornflower extract, hamamelis extract, placenta extract, thymus extract, silk extract, etc. It may be formulated into the emulsion composition.

Further, among the base components which can be blended in the emulsion composition of the present invention, the liquid oils and fats include linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil,
Olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, triglycerin, trioctanoic acid glycerin, triisopalmitic acid glycerin, etc. It can be incorporated into the inventive emulsion composition.

As the ester oil, cetyl octanoate, hexyl laurate, isopropyl myristate, octyl palmitate, isocetyl stearate,
Incorporating isopropyl isostearate, octyl isopalmitate, isodecyl oleate, glyceryl tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, 2-ethylhexyl succinate, diethyl sebacate, etc. into the emulsion composition of the present invention can do.

As the hydrocarbon oil, liquid paraffin, squalane, squalene, paraffin, isoparaffin, ceresin and the like can be blended in the emulsion composition of the present invention.

As the silicone oil, chain silicones such as dimethylpolysiloxane, methylphenylpolysiloxane and methylhydrogenpolysiloxane; cyclic resins such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane. Silicone or the like can be added to the emulsion composition of the present invention.

As the lower alcohol, methanol, ethanol, propanol, isopropanol and the like can be added to the emulsion composition of the present invention.

As the water-soluble polymer, plant polymers such as gum arabic, carrageenan, pectin, agar, quince seed (quince), starch, algae colloid (brown algae extract); dextran, pullulan, etc. Molecules: Animal-based polymers such as collagen, casein, gelatin; Starch-based polymers such as carboxymethyl starch, methyl hydroxypropyl starch; Cellulose-based polymers such as methyl cellulose, nitrocellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose; Alginic acid-based polymers such as sodium alginate; Vinyl-based polymers such as carboxyvinyl polymers (CARBOPOL); Polyoxyethylene-based polymers; Polyoxyethylene-polyoxypropylene copolymer systems Molecule; sodium polyacrylate,
Acrylic polymers such as polyacrylamide; inorganic water-soluble polymers such as bentonite, magnesium aluminum silicate, and laponite can be added to the emulsion composition of the present invention.

As the sequestering agent, edetic acid sodium salt, sodium metaphosphate and the like can be added to the emulsion composition of the present invention.

As the neutralizing agent, 2-amino-2-
Methyl-1-propanol, potassium hydroxide, sodium hydroxide, triethanolamine, sodium carbonate and the like can be added to the composition of the present invention.

As the antioxidant, ascorbic acid, α-tocopherol, dibutylhydroxyanisole and the like can be added to the emulsion composition of the present invention.

The above-mentioned drugs and base components are used in a free state, those capable of salt formation are in the form of acid or base salts, and those having a carboxylic acid group are in the form of their esters. Can be used in. Furthermore, to the emulsion composition of the present invention, a suitable fragrance, dye or the like can be added, if necessary, within a range that does not impair the intended effect of the present invention. The specific formulation of the present invention will be described in Examples described later.

[0043]

EXAMPLES The present invention will be described in more detail with reference to the following examples. However, the technical scope of the present invention should not be limitedly interpreted by these examples and the like. In the following, "wt%" means "wt% based on the entire composition" unless otherwise specified.

First, the evaluation method of the emulsified composition in this example and the like will be described. <Sensory test by a panel specialized in women> Regarding the feeling of use (body) of the emulsion composition, a sensory test was conducted by 10 panelists specialized in women. Evaluation criteria for "Koku" ◎: Very good (9 or more out of 10 evaluated as good) ○: Good (7 to 8 out of 10 evaluated as good) △: Fair (3 out of 10) 1 or more and 6 or less are evaluated as good) ×: Inferior (2 or less out of 10 are evaluated as good)

<Low Temperature Stability Test 1> The emulsion composition was allowed to stand in a constant temperature bath at 0 ° C., and the state after 6 months was observed with a polarizing microscope. Evaluation Criteria for Low Temperature Stability ◯: Presence of crystals is not recognized at all. Δ: The presence of crystals is slightly recognized. X: Presence of crystals is clearly recognized.

<Measurement Method of Number Average Emulsion Particle Size> The emulsion immediately after preparation was photographed with an optical microscope photograph photographing device and visually observed.

[Examples 1 and 2, Comparative Examples 1 to 3] Emulsion compositions having the formulations shown in Table 1 were produced and evaluated for "body strength during use" and low temperature stability based on the above criteria. The average emulsion particle size was measured. The results of these evaluations are also shown in Table 1.

[0048]

<Production Method> The oil phase component was heated to a liquid state, added to the water phase component, and emulsified with a rotary emulsifier (homomixer: HM) or a high pressure emulsifier (nanomizer).

Both Example 1 and Example 2 were good in terms of body stability and low temperature stability. The first embodiment is the second embodiment.
In addition to the above formula, since stearic acid, which is one of the fatty acids suitable for inclusion in the present invention, is added, the "feeling of use" is particularly excellent.

Comparative Example 1 in which the emulsified particle size was 5 μm even though the blending components were the same as those in Example 1, was equivalent to Example 1 in "feeling of use when used", but was stable at low temperature. Was inferior in terms of. From this, it was found that adjusting the emulsion particle size to 1 μm or less is necessary for imparting low temperature stability to the emulsion composition of the present invention.

Furthermore, "oil component which is solid at room temperature"
Comparative Example 2 in which is not added is excellent in low temperature stability,
The "feeling of bodyiness" was inferior. From this,
Incorporating "an oily component that is solid at room temperature"
It has been found that it is necessary to give the emulsion composition of the present invention a "rich feeling of use". Next, the first embodiment described above
The low temperature stability was further investigated.

<Low Temperature Stability Test 2> X-ray Diffraction Measurement The X-ray diffraction measurement of Example 1 and Comparative Example 1 was performed. The result of this X-ray diffraction can mainly judge the degree of progress of crystallization of fatty acid. Figure 1
FIG. 3 is a diagram showing the results of X-ray diffraction after storage of the emulsion composition of Example 1 at 0 ° C. for 6 months. FIG. 2 shows that the emulsion composition of Comparative Example 1 was stored for 6 months at 0 ° C.
It is a figure which shows the result of line diffraction.

In Comparative Example 1, it can be seen that the diffraction line on the short side of the fatty acid crystal exists near the angle (2θ) of 15 to 25, and the crystallization (stabilization) progresses. On the other hand, in Example 1, the diffraction line on the short side of the fatty acid crystal was hardly seen, indicating that the crystallization proceeded slowly.

The formulations of various emulsion compositions of the present invention are described below (the respective production methods were the same as those in Examples 1 and 2 above). When these emulsion compositions were subjected to the above-mentioned test, all had an "rich feeling in use" and excellent low-temperature stability.

Example 3 Weight% A. Oil phase Dimethyl polysiloxane 5.0 Isopropyl myristate 3.0 Liquid paraffin 2.0 α-Tocopherol 0.1 Behenic acid 9.0 B. Aqueous phase Triethanolamine 0.35 Propylene glycol 15.0 Methyl paraoxybenzoate 0.2 PEMULEN TR-2 1.0 Hydroxypropylmethylcellulose 0.5 Ion-exchanged water Residual

Example 4 Weight% A. Oil phase Jojoba oil 3.0 Acetate dl-α-tocopherol 0.1 Butyl paraoxybenzoate 0.1 Behenyl alcohol 0.5 Microcrystalline wax 0.1 Decamethylcyclopentasiloxane 20.0 B.I. Water phase Dipropylene glycol 7.0 Trisodium edetate 0.05 PEMULEN TR-1 3.0 Sodium hydroxide 1.0 Ethanol 9.0 Ion-exchanged water Residual

Example 5 Weight% A. Oil phase Macadamia nut oil 10.0 Methylphenyl polysiloxane 2.0 Diethyl sebacate 4.0 Vitamin A oil 0.01 Beeswax 5.0 Vaseline 12.0 B. Aqueous phase 1,3-butylene glycol 10.0 Propylene glycol 5.0 Arbutin 5.0 Magnesium ascorbyl phosphate 1.0 Placenta extract 0.05 Loofah extract 0.5 PEMULEN TR-1 0.02 CARBOPOL 941 0.1 Ethyl paraoxybenzoate 0.3 Phenoxyethanol 0.3 Ion-exchanged water Residual

Example 6 Weight% A. Oil phase Squalane 10.0 Dioctyl succinate 5.0 Octyl paramethoxycinnamate 0.1 Cetostearyl alcohol 0.5 Retinol palmitate 0.4 B. Water phase PEMULEN TR-1 0.01 PEMULEN TR-2 0.05 Sorbit 5.0 Ascorbic acid 1.0 Methyl paraoxybenzoate 0.5 Ion-exchanged water Residual

[0060]

EFFECTS OF THE INVENTION According to the present invention, an emulsion composition which does not need to use a surfactant as an emulsifying means for the purpose of ensuring a high degree of safety sufficiently retains a "rich feeling in use". Further, an emulsion composition having excellent stability at low temperature is provided.

[Brief description of drawings]

FIG. 1 is a diagram showing the result of X-ray diffraction of the emulsion composition of the present invention in Example 1.

FIG. 2 is a diagram showing the result of X-ray diffraction of the emulsion composition of Comparative Example 1.

Claims (22)

[Claims] 1. The following components (A) and (B): (A) Alkyl-modified carboxyvinyl polymer (B) An oily component which is solid at room temperature, and comprises an internal phase formed as a result of emulsification. An oil-in-water emulsion composition in which the number average particle diameter of the oil component is 1 μm or less. 2. The oil-in-water emulsion composition according to claim 1, wherein the alkyl-modified carboxyvinyl polymer is an alkyl acrylate / methacrylic acid copolymer. 3. The oil-in-water type according to claim 1, wherein the alkyl-modified carboxyvinyl polymer is PEMULEN TR-1 and / or PEMULEN TR-2 manufactured by BFGoodrich. The oil-in-water emulsion composition according to claim 1, which is 4. The oil-in-water according to claim 1, wherein the amount of the alkyl-modified carboxyvinyl polymer compounded is 0.01% by weight or more and 10% by weight or less of the total composition. Emulsion composition. 5. The oil-in-water according to claim 1, wherein the amount of the alkyl-modified carboxyvinyl polymer compounded is 0.05% by weight or more and 5% by weight or less of the total composition. Emulsion composition. 6. An oily component which is solid at room temperature is one or more oily components selected from the group consisting of higher alcohols, solid fats and oils, waxes, solid hydrocarbons, higher fatty acids and higher fatty acid salts. The oil-in-water emulsion composition according to any one of claims 1 to 5, which is a component. 7. The oily component which is solid at room temperature is one or two or more oily components selected from the group consisting of higher alcohols, higher fatty acids and higher fatty acid salts. The oil-in-water emulsion composition according to any one of claims. 8. The oily component which is solid at room temperature is selected from higher alcohols in the group consisting of lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, cetostearyl alcohol, glyceryl monostearyl ether and glyceryl monocetyl ether. The oil-in-water emulsion composition according to claim 6 or 7, which is one or more higher alcohols. 9. An oily component which is solid at room temperature is selected from capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, cerotic acid, 2-palmitoleic acid and erucic acid. The oil-in-water emulsion composition according to claim 6 or 7, which is one or more higher fatty acids selected from the group consisting of higher fatty acids. 10. An oily component which is solid at room temperature is one or more higher fatty acids selected from higher fatty acids in the group consisting of capric acid, lauric acid, myristic acid, palmitic acid, stearic acid and arachidic acid. The oil-in-water emulsion composition according to claim 6 or 7. 11. An oily component which is solid at room temperature is a caprate, laurate, myristate, palmitate, stearate, arachinate, behenate, lignocerate, serotiate. The oil-in-water emulsion composition according to claim 6 or 7, which is one or more higher fatty acids selected from the higher fatty acid salts of the group consisting of, 2-palmitoleate and erucate. 12. The higher fatty acid salt according to claim 11, wherein the higher fatty acid sodium salt, potassium salt, ammonium salt,
Triethanolamine salt, tripropanolamine salt,
An oil-in-water emulsion composition comprising one or two higher fatty acid salts selected from the group consisting of aluminum salts, magnesium salts, zinc salts, calcium salts, arginine salts and lysine salts. 13. An oily component which is solid at room temperature is selected from the group consisting of cacao butter, coconut oil, palm oil, palm kernel oil, hydrogenated oil, hydrogenated castor oil, oak and shea butter. Or two or more solid fats and oils.
The oil-in-water emulsion composition described. 14. An oily component which is solid at room temperature is one or more waxes selected from the group consisting of beeswax, carnauba wax, lanolin, reduced lanolin, hard lanolin, jojoba wax and shellac wax. The oil-in-water emulsion composition according to claim 6. 15. The oil-in-water emulsion composition according to claim 6, wherein the solid hydrocarbon is petrolatum and / or microcrystalline wax. 16. The composition according to claim 1, wherein the amount of the oily component that is solid at room temperature is 0.5% by weight or more and 20% by weight or less based on the total weight of the composition. Oil-in-water emulsion composition of. 17. The water according to claim 1, wherein the amount of the oily component that is solid at room temperature is 1% by weight or more and 10% by weight or less based on the total weight of the composition. Oil-based emulsion composition. 18. The oil-in-water emulsion composition method according to any one of claims 1 to 17, which is emulsified by a non-aqueous emulsification method, a D-phase emulsification method or a phase inversion temperature emulsification method. 19. The oil-in-water emulsion composition according to claim 18, which is emulsified by a homomixer, homodisper, homogenizer, colloid mill, pebble mill or ultrasonic emulsifying machine. 20. The oil-in-water emulsion composition according to claim 1, which is emulsified by a high-pressure emulsifying machine. 21. The oil-in-water emulsified composition according to claim 20, wherein the high-pressure emulsifier is Microfludizer, Nanomizer, or Mantongourin (all are trade names). 22. The method according to claim 1, which is substantially free of a surfactant.
22. The oil-in-water emulsion composition according to any one of claims 21 to 21.